Efface is a fast, private face anonymization tool for macOS. Drop a photo or video and instantly blur, pixelate, or mask every detected face — all processed locally on your Mac using the Neural Engine. No data ever leaves your device. Features: - Gaussian blur, solid fill, and mosaic anonymization styles - Adjustable detection sensitivity and mask scale - Multiple mask shapes including face contour - Video processing with temporal smoothing and audio preservation - Detection overlays: reticle HUD, key points, and full landmarks - Supports JPEG, PNG, HEIC, MP4, MOV, and more All processing happens on-device. No internet connection required.